World-Class Mounting Systems

Size Guide

Ball Sizes
Arm Sizes
X
The unique double ball and socket design allows you to adjust your mount to the perfect viewing or operating angle, all with the turn of a single knob. This modular design can be configured with a variety of interchangeable components to fit your specific mounting needs.
B Size
Holds 2 lbs / 0.91 KG
1" Ball
Phones, Action Cameras, Light Duty Tablets
C Size
Holds 4 lbs / 1.81 KG
1.5" Ball
Fishfinders, Heavy Duty Tablets
D Size
Holds 6 lbs / 2.72 KG
2.25" Ball
Monitors, Large Fishfinders
E Size
Holds 15 lbs / 6.8 KG
3.38" Ball
Heavy Monitors
Ball Sizes Short Arm Medium Arm Long Arm
B Size Overall Length 2.42" / 6.1468cm 3.73" / 9.47cm 6.00" / 15.24cm
Socket-to-Socket Length 1.75" / 4.45cm 3.00" / 7.62cm 5.31" / 13.49cm
C Size Overall Length 3.56" / 9.04cm 5.69" / 14.45cm 9.13" / 23.19cm
Socket-to-Socket Length 2.50" / 6.35cm 4.66" / 11.84cm 8.00" / 20.32cm
D Size Overall Length 5.10" / 12.95cm 8.44" / 21.44 12.98" / 32.97
Socket-to-Socket Length 3.60" / 9.14cm 6.88" / 17.48cm 11.41" / 28.98cm
E Size Overall Length 7.31" / 18.57cm 12.63" / 32.08cm N/A
Socket-to-Socket Length 4.98" / 12.65cm 9.88" / 25.10cm N/A

RAM® Dashboard Mount with Backing Plate & Diamond Plate - C Size Medium

SKU Copied
SKU: RAM-138-225B2U
UPC Copied
UPC: 793442029509

RAM® Dashboard Mount with Backing Plate & Diamond Plate - C Size Medium
Copy SKU
SKU: RAM-138-225B2U
Copy UPC
| UPC: 793442029509

C SIZE
MEDIUM ARM
Size Guide
The RAM Dashboard Mount with Backing Plate & Diamond Plate - C Size Medium (RAM-138-225B2U) consists of a double socket arm, one 6.35cm (2.5") diameter round base, one 6.17 cm (2.43") X 3.33 cm (1.31") diamond base, one 5.33 cm (2.10") X 6.60 cm (2.60") backing plate, and mounting hardware. Each base features the universal AMPS hole pattern, making them compatible with all RAM device holders. The mount is designed with a 2.54cm (1") diameter rubber ball and socket system that features adjustment points at both ends of the double socket arm, allowing for near-infinite adjustability for ideal viewing angles.

Features
  • 6.17 cm (2.43") X 3.33 cm (1.31") diamond base with C size 3.81cm (1.5") RAM® rubber ball connects to RAM® device holders containing the universal AMPS hole pattern; includes C size medium length double socket arm
  • 5.33 cm (2.10") X 6.60 cm (2.60") steel backing plate provide support for mount when drilling in and securing to thin surfaces, like dashboards
  • Ball and socket technology allows for near-infinite adjustability
  • Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments
  • Backed by a lifetime warranty

Information

Information

Product Weight
0.62 kg (1.36 lbs)
Hardware Included
(1) 5.33 cm (2.10") X 6.60 cm (2.60") Steel Backing Plate(4) #8-32 x 2.54cm (1") Machine Screws(4) #8 Split Lock Washers(4) #8 Flat Washers
Product Dimensions
Overall Height: 18.67cm (7.35")
Socket To Socket Length
11.84cm (4.66")
Hole Pattern
2-Hole AMPS 4.86cm (1.912")
Ball Size
C Size ( 3.81cm (1.5") )
Weight Capacity
Standard Use: 1.81 kg (4 lbs) Heavy-Duty Use: 1.36 kg (3 lbs)
Materials
Marine-grade aluminumSteel
Packaging Type
Poly Bag
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Components

RAM Mounts
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RAM-201U
RAM® Double Socket Arm - C Size Medium
RAM Mounts
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RAM-238U
RAM® Diamond Ball Base - C Size
RAM Mounts
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RAM-202-225-2U
RAM® Drill-Down Dashboard Ball Base with Backing Plate - C Size


Complete Your Solution

Locking Knobs for C Size Socket Arms

RAM Mounts
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RAM-KNOB5LU
RAM® Key Lock Knob with Brass Insert for C Size Socket Arms
RAM Mounts
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RAM-KNOB5LSU
RAM® Key Lock Knob with Steel Insert for C Size Socket Arms
RAM Mounts
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RAP-S-KNOB5-4U
RAM® Pin-Lock™ 4-Pin Security Knob for C Size and Swing Arms
RAM Mounts
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RAP-S-KNOB5-6U
RAM® Pin-Lock™ 6-Pin Security Knob for C Size and Swing Arms
RAM Mounts
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RAP-S-KNOB5U
RAM® Pin-Lock™ Security Knob for C Size Socket Arms
RAM Mounts
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RAP-S-KNOB5-7U
RAM® Pin-Lock™ 7-Pin Security Knob for C Size and Swing Arms
RAM Mounts
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RAP-S-KNOB5-5U
RAM® Pin-Lock™ 5-Pin Security Knob for C Size and Swing Arms
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